.welcome{
    margin: 40px auto 120px;
    position: relative;
    /* border: 1px solid black; */
}
.welcome .title_2,.product .title_3,.news .news_1,.video_1 .video_2{
    font: 34px "Franklin Gothic Medium";
    text-align: center;
    text-transform: uppercase;
    margin-bottom:30px;
}
.title_2::after,.title_3::after,.news .news_1::after,.video_1 .video_2::after{
    content: "";
    display: block;
    width: 40px;
    background-color: #01a1ff;
    height: 5px;
    position: absolute;
    left: 50%;
    margin-left: -22px;
    margin-top:3px ;
}
.welcome p,.product p,.news p,.video_1_1 p{
    width: 70%;
    font: 14px 宋体;
    line-height: 24px;
    text-align: center;
    margin: 0 auto;
    color: rgb(102,102,102);
}
.show_1{
    width: 1170px;
    display: flex;
    justify-content:space-between;
    margin: 100px auto;
}
.show_1 img{
    width: 47px;
    height: 47px;
    margin:0px auto 45px;
}
.show_1 li{
    width: 225px;
    /* height: 240px; */
    text-align: center;
    /* border: 1px solid black; */
}
.show_1 li h3{
    font: 20px "Franklin Gothic Medium";
    color: rgb(51,51,51);
}
.show_1 li h4{
    font:14px 微软雅黑;
    color: rgb(102,102,102);
}
.show_1 p{
    margin: 30px auto 0;
    font: 12px/24px 宋体;
    width: 100%;
    word-break: break-all;
}
.product ul{
    width: 100%;
    margin: 50px auto 0px;
    overflow: hidden;
}
.product ul li{
    display:block;
    width: 16.666%;
    float: left;
    box-sizing: border-box;
}
.product ul li img{
    width: 100%;
}
.product ul li p{
    width:100%;
    height: 30px;
    background-color: rgb(229,229,229);
    overflow: hidden;
    margin-top: -2px;
}
.product ul li p span{
    font: 14px/24px "SourceHanSansCN";
    float: left;
    line-height: 30px;
    margin-left: 15px;
}
.product ul li p .add_1{
    width: 15px;
    height: 15px;
    /* border: 1px solid rgb(152,152,152); */
    margin:7px 15px 7px 0;
    float: right;
    border-radius: 50%;
    background-color: rgb(152,152,152);
    font: 900 15px 黑体;
    color: rgb(185,185,185);
}
.product ul li:hover{
    /* border: 1px solid black; */
    box-shadow: 0px 2px 2px #01a1ff inset;
}
.product ul li:hover p{
    transition: all 0.2s ease;
    background-color: rgb(1,165,255);
    color: #fff;
}
.product ul li:hover p .add_1{
    transition: all 0.2s ease;
    color: rgb(74,188,255);
    background-color: #fff;
}
.news{
    margin-top:120px;
}
.news_details{
    width: 1200px;
    margin: 55px auto 120px;
    overflow: hidden;
}
.news_details .news_left{
    width: 555px;
    float: left;
    position: relative;
}
.news_left img{
    width: 100%;
}
.news_left p{
    width: 100%;
    height: 40px;
    font: 18px/24px "SourceHanSansCN";
    line-height: 40px;
    background-color: rgb(1,161,255);
    padding-left: 10px;
    text-align:left;
    box-sizing: border-box;
    color: white;
    position: absolute;
    top: 257px;
}
.news_left ul{
    width: 100%;
    overflow: hidden;
    margin-top: -2px;
}
.news_left ul li{
    width: 20%;
    height: 5px;
    background-color: rgb(229,229,229);
    float: left;
}
.news_left ul li[class="on_1"]{
    background-color: rgb(1,161,255);
}
.news_right{
    width: 605px;
    height: 315px;
    /* border: 1px solid #01a1ff; */
    float: right;
}
.right_top{
    overflow: hidden;
    padding-bottom: 8px;
    border-bottom:1px dotted rgb(204,204,204);
}
.time_details{
    width: 70px;
    height: 78px;
    float: left;
}
.time_details span{
    width: 100%;
    box-sizing: border-box;
    display: block;

}
.time_details .time_dd{
    width: 100%;
    height: 58px;
    border: 1px solid rgb(1,161,255);
    font:40px/24px "Helvetica";
    color: #01a1ff;
    line-height: 58px;
    text-align: center;
    padding-right: 3px;
}
.time_details .time_ye{
    width: 100%;
    height: 20px;
    background-color: rgb(1,161,255);
    font: 14px/24px "Helvetica";
    text-align: center;
    line-height: 18px;
    color: white;
    border: 1px solid rgb(1,161,255)
}
.news_right .news_p{
    width: 525px;
    height: 78px;
    float: right;
}
.news_right .news_p p{
    text-align: left;
    width: 100%;
}
.news_right .news_p .news_p1{
    font: 18px/24px "SourceHanSansCN";
    margin-top: 1px;
    color: #01a1ff;
}
.news_right .news_p .news_p2{
    font: 12px/20px 宋体;
    margin-top:10px ;
    color: rgb(153,153,153);
}
.news_right .news_content{
    width: 100%;
}
.news_right .news_content li a i{
    font-size: 15px;
    margin-right: 10px;
}
.news_right .news_content li a{
    font:14px/20px "宋体";
    color: rgb(102,102,102);
    display: block;
    height:37px;
    line-height: 37px;
    border-bottom: 1px dotted rgb(204,204,204);
    position: relative;
}
.news_right .content_time{
    position: absolute;
    right: 1px;
}
.video_1{
    margin: 0px auto 170px;
    /* border: 1px solid black; */
}
.video_content{
    width: 1320px;
    margin: 50px auto 0px;
    display: flex;
    justify-content: space-between;

    /* border: 1px solid black; */
}
.video_content ul{
    width: 1200px;
    display:flex;
    justify-content: space-between;
}
.video_content ul li{
    display: inline-block;
    width: 260px;
    height: 285px;
    position: relative;
    transition: all 0.5s ease;
    /* border: 1px solid #01a1ff; */
}
.video_content ul li img{
    width: 260px;
    height: 195px;
}
.video_content ul li p{
    height: 45px;
    text-align: center;
}
.video_content ul li .p1{
    font: 16px/20px "SourceHanSansCN";
    font-weight: 700;
    color: rgb(51,51,51);
    height: 46px;
    line-height: 63px;
    vertical-align: top;
    transition: all 0.5s ease;
}
.video_content ul li .p2{
    height: 30px;
    font: 12px/20px 宋体;
    color: rgb(153,153,153);
}
.video_content ul li:hover{
    box-shadow: 0px 4px 10px rgba(1,161,255,0.45);
}
.video_content ul li:hover .p1{
    color: rgb(1,161,255);
}
.video_content ul li a{
    display: block;
    width: 100%;
}
.video_content ul li .play_1{
    width: 55px;
    height: 55px;
    border: 3px solid #fff;
    border-radius:50%;
    position: absolute;
    margin:70px 103px;
    background-color: rgba(127,127,127,0.4);
    transition: all 0.5s ease;
}
.video_content ul li .play_1::after{
    content: "";
    display: block;
    width: 0;
    height: 0;
    /* border-width: 20px;
    border-style: solid;
    border-color: transparent transparent transparent #fff; */
    border: 20px solid transparent;
    border-left-color: #fff;
    position: absolute;
    left: 21px;
    top: 7px;
    transition: all 0.5s ease;
    /* transition-property: content,display,border-width,border-style,position,left,top;
    transition-duration: 0.5s;
    transition-timing-function: ease; */
}
.video_content ul li:hover .play_1{
    background-color: rgba(255,255,255,0.4);
    border-color: rgb(1,161,255);
}
.video_content ul li:hover .play_1::after{
    border-left-color: rgb(1,161,255);
}
.video_content ul li .play_1:hover::after{
    /* transition: all 0.5s ease; */
    border-left-color: rgb(1,161,255);
    width: 40px;
    height: 36px;
    border-width: 0 0 0 34px;
    border-style: double;
    border-left-color: rgb(1,161,255);
    position: absolute;
    left: 11px;
    top: 10px;
}
.next_2,.prev_2{
    display: block;
    width: 30px;
    height: 30px;
    /* border: 1px solid #01a1ff; */
    border-radius:50%;
    margin-top: 88px;   
    transition: all 0.3s linear; 
}
.video_content .next_2{
    background-image: url(../img/index-xb1.png);
    background-position:-1px;
}
.video_content .prev_2{
    background-image: url(../img/index-xb2.png);
    background-position:-1px;
}
.video_content .prev_2:hover{
    background-image: url(../img/index-xb4.png);
}
.video_content .next_2:hover{
    background-image: url(../img/index-xb3.png);
    /* animation: next_2_a 0.3s linear 0s 1 normal;
    animation-fill-mode : forwards; 动画停在最后一帧 */
    transform: rotateZ(90deg);
}